Automatic valve for inflating tires.



Patented Mar 20, 1917 I EI Eean APPLICATION FILED NOV. 30| ITIN.

`F A DEANLW H LITTLE AUTOMATIC VALVETFOR INFLATIFG TIRES.

iililkmthrough 4a. part ofthedevice.

"-'FRNKIJIN LA. 'DEABLAND WILLIAM .immun-'ric VALVE Fon 4 INFLApI-Ne-myiz ms.

Specification of Letters Patent.

.Application mea November 3o, 1914- Se'rial N9- lf 1.5.19.

To all whom 'it may concern.' L

"Be it'known that we, FRANKLIN A. DEAN "and VILMAM H. Tarrina, citizens of the United States, residing at Alta. V ista., in the f county of Vabaunsce and State of Kansas,

"have'invented eertaiunew` and useful Imlprovements in Automatic Valves tor InH-at- "ing'lr-es; and We do hereby declare they following to be a full, clear, and exact descrip- ".'lwtio'n ofthe invention, such as will enable 'fotliers skilled in the art to which it appertains to make and vuse the same.

This invention relates to a device for automatically controllingthe inflation of inl' flatable bodies, and the primary object ol lthe invention is to provide a device, con "trolled by the pressure of air in the infiattable body, which will act automatically for cutting otl" the ingoing air and also to main- 94'* tain any predetermined pressure within the iufiatable body.

4Anotherobject of this iuventiou is to providea device of this nature which is ap )licable for attachment to the ordinary in at- '1ing valve of the inner inflatable tube of 4pneumaticy tires, and also attachable to the "tube which leads from any suitable type of air supply source, and to associate in this device, a'lpressure gage which may be set '"530` at any predetermined. quantity of pressure for regulating the pressure within the in- ""flatable body.

With the ,foregoing and other objects :in "View thisinvention consists in such novel features of construction, combination and "arrangement of parts as will be hereinafter lmore fully' described, illustrated in the ael"companyingr drawings and claimed.

v 'bln describing; the invention indetail refn ,y

"" ferencewvl Vbe had4 to the accompanying 1" clra'vingsf wherein like y characters .designate like or corresponding parts A-threuabout the 'severalvews, and -in whieh:--

Figure 1 isa side elevation of the iml.proved tire filler lshowing;- the same attached Ato' tlie iirlating..valve of aepneumatie body.

" Fig. 2 is a central'sectionalvview through L theimproved.automatic valve, and i i Fig. 3 is a: fragmentary'verticaleseetion Rer'erri'ngL 'more l,pai-tical arlyV ings, lf-designates the automatic `valve or 'f E.gage as* 1an ientirety, which is shown in Fig.

*as''attached 'to famordrinary typey ofj infiatto the drawable bodies andpartienlarly the linner infiatabletubes ofpnenmatic tires.

The automatic valve engage Lincludes a tube 3, which is adaptableafor Connection. to the tube or` hose 4 which is eonneeteditolany ,to an ordinary'type of the inflatablebo lies. lower end detach ably seated linthelunion 5 which union hasn pair of 4parallel extending bores 6 and 7, xvgiich are .connected tofeaeh other by a transversely extending passage 8. The transversely ,extendingv passage 8 is positioned substanti ally equidistant of lthe ends of the bore 6, ai d is of lessmdiameter1 than either the bore 6 or the bore 7.

The bore G has a tube 9 detachably mounted in its lower nd and in ..linfznent With the tube 3, which tube has a cap 10 mounted upon its lower e' 1d for air tight connection with the stem 11 of `the valve construction 2 so as to form a cintinuous passage from the tube Jr through the tube 3, the boret and the ,jpiunp fori .initiating he .tube i 3 ,has its union 5, the tubs 9 and through the valve mechanism 2 into the infiatable body'indicated at 12 in Fig. 1 of the drawings.

lhe bore 7 which .is positioned alongside of and parallel' io thebore khas thelower end of a tube 13,1 letachably niountedtherein. The tube 13 terms the outer` 4easing of a gage structure -a nd it has `a slotl 14 `formed longit'lulinally taerein.y alongside of "which slots are arranged graduations 15 designa# ing variousdegfees oiiprressure of air. A plugr 1G is sllda blyunounted in the upper endv of the tube t3 and it basar@` indicating .Finger 17 formel `thereupon 4ivl'rlcir,projects through the` slet '14H and chalets, `With the graduations 15. A cap 18 isV detachably mounted upon tl 1e upper end lof the tube 13, ..\vl1.irh cap has lpin or bolt 19 extendinv .therethrough The holt. 1.9 extends :througi the cap 1S and-cngagesthelupper endbt the V4plusr 1G, so.th:t uponradjustment of the boltthe 'pliig livithin the-.sleeve 13, for positioning the in- .,dieator 17 at .ifa rions,pressureulegrees indi# rated .by.thegriLduations 15. A olllar.20 is y..-.uiounted und ,i he illiberty,surfaeof theA cap 1 8 .and-theh lt i .adjustablyy i itedy in this, collar. 1 espiral 1s .W bore otthet tutti, same engagi rait uit i pas 1( maybe fbreeld. downwardly..

sion of the spring i gege for the tube 13. The ten- 21 holds the fpiston 22 positioned Within the tube 13 'for .orn'ung a.

is slidably seated in closure for' the opening 23 which extends v ordinary type of inflating valve suc-b as is sired to inilate the intiatable body.

carriedby inflatable bodies and the plug 145 is forced downwardly against the tension of the spring 21 by the adjustment. of the pin or bolt 19, until the indicating iin; i: 1T designates degree of pressure. which it i.. de Ai'ter the device has been properly arranged, the airl is permitted to enter the infiatable body, and .when the pressure indicated by the indicating hand 17 is reached, it will overcome the tension of the spring 21, and force the iston 22 upwardly Within the sleeve 13, causing the piston to move out of a closing position for the outletopening 23, and thus per mitting the surplus air to escape through the opening 23, and prevent excess infiation lof the inatable body.

From the foregoing description taken in connection with the accompanying drawings the'advantages of construction and of the method of operation of the improved automatie valve for i flatin tires will 'be read ily 1a parent to t vosees Yilled in. the art to `gwhic ,thisin'vention appertains and, while 4inthe foregoing description, the rinciple 1- j of the operation of` this invention as been `together with various features of construction, it is to .be understood that certain minor features of construction, combination and arrangement of parts may be altered to suit practical conditions provided such alterations are eomprel'iemled 'within the scope of vwhat is claimed.

What is claimed is:

A device tor regulating the pressure in pneumatic bodies comprising a union having a. 'pa-ir of vertically extending parallel bores therein and aV transversely extending bore connecting said parallel bores, a pipe connected to one of the parallel bores and adaptml to be arranged in communication with an air supply, a secimd pipe connected to the other end of the mentioned bore and adapted to' be ronnnunioated with an insulating` valve, a gage strlu-.ture operathely Connected to the other of said parallel bores and including a. vertical tube having an escapo opening adjacent its lower end and a centrally located longiliulinally ext'sniding slot in the wall tlie1e \t,tl ie upper end of the vertical tube being disposed above the upper end ot the iirst-nientioned pipe, a piston located within the tube and disposed below the slot and operable across the opening, a plug slidably mounted within the tube, an indicator carried by the plug and extending through the longitudinal slot in the tube, a spring interposed between the plug and the piston for returning the piston to normal position after the same has been operated, and means adjustable through the upper end of the tube and against the plug and adapted when moved in one direction to move the plug inwardly and against the tension of the spring, for the purpose specified.

In testimony whereof we affix our signatures in presence of two witnesses.

FRANKLIN A. DEAN.

,. WILLIAM H. LITTLE.

lVitnesses A. H. MESEKE,

C, A. MESEKE. 

